John Rooney

John Rooney

28-Year-Old PitcherRP
Houston Astros
15-Day IL
Injury Elbow
Est. Return 9/9/2025
2025 Fantasy Outlook
There was no outlook written for John Rooney in 2025. Check out the latest news below for more on his current fantasy value.
Signed a one-year contract with the Marlins in November of 2024. Traded to the Astros in August of 2025.
Out with elbow inflammation
PHouston Astros
Elbow
August 26, 2025
The Astros placed Rooney on the 15-day injured list Tuesday due to left elbow inflammation, Brian McTaggart of MLB.com reports.
Analysis
He will be eligible to return Sept. 9, but given the nature of the injury, Rooney might need more time to make a full recovery. The lefty reliever has made one appearance for Houston this season, surrendering one run over 1.1 frames.
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Pitching Stats
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2025 MLB Game Log
2025
2025 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
23
Last 10 Games
23
Last 5 Games
23
How many pitches does John Rooney generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does John Rooney generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
 
 
-100%
BAA vs LHP
2025
 
 
-100%
BAA vs LHP
2024
No Stats
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .000 4 2 1 0 0 0 0
Since 2023vs Right .500 2 0 0 1 0 0 1
2025vs Left .000 4 2 1 0 0 0 0
2025vs Right .500 2 0 0 1 0 0 1
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-100%
ERA at Home
2025
 
 
-100%
ERA at Home
2024
No Stats
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 0 0 0 0 0 0 0 0 0
Since 2023Away 6.75 1.50 1.1 0 0 0 13.5 6.8 6.8
2025Home 0 0 0 0 0 0 0 0 0
2025Away 6.75 1.50 1.1 0 0 0 13.5 6.8 6.8
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does John Rooney compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
2.00
 
K/9
13.5
 
BB/9
6.8
 
HR/9
6.8
 
Fastball
91.0 mph
 
ERA
6.75
 
WHIP
1.50
 
BABIP
.000
 
GB/FB
0.50
 
Left On Base
166.7%
 
Exit Velocity
0.0 mph
 
Barrels/BBE
0.0%
 
Spin Rate
0 rpm
 
Balls Hit 95+ MPH
0.0%
 
Swinging Strike
17.4%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Summoned from Triple-A
PHouston Astros
August 24, 2025
The Astros recalled Rooney from Triple-A Sugar Land on Sunday.
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Dispatched to minors
PHouston Astros
August 5, 2025
The Astros optioned Rooney to Triple-A Sugar Land on Tuesday, Brian McTaggart of MLB.com reports.
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Dealt to Houston
PHouston Astros
August 3, 2025
The Astros acquired Rooney from the Marlins in exchange for cash considerations and added him to the 40-man roster and 26-man active roster ahead of Sunday's series finale in Boston.
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To join full-season affiliate soon
PLos Angeles Dodgers
April 4, 2019
Rooney is being held back in extended spring training, but should join a full-season affiliate in the near future, Jim Callis of MLB.com reports.
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Goes to Dodgers in third round
PLos Angeles Dodgers
June 5, 2018
The Dodgers have selected Rooney with the 104th overall pick in the 2018 first-year player draft.
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